SOLUTION: 3. If x+y=90 degrees and x and y are positive, then (sin x) / (cos y) = a.-1 b.0 c.1/2 d.1 e. It cannot be determined from the information given

Algebra ->  Trigonometry-basics -> SOLUTION: 3. If x+y=90 degrees and x and y are positive, then (sin x) / (cos y) = a.-1 b.0 c.1/2 d.1 e. It cannot be determined from the information given       Log On


   



Question 696279: 3. If x+y=90 degrees and x and y are positive, then (sin x) / (cos y) =
a.-1
b.0
c.1/2
d.1
e. It cannot be determined from the information given

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If x+y=90 degrees and x and y are positive, then (sin x) / (cos y) =
y = 90 - x
cos(90 - x) = sin(x)
--> sin(x)/sin(x) = 1